P0705 – Transmission Range Sensor Circuit Malfunction (PRNDL input)
- System
- AT (gearbox)
- Dashboard light
- Check engine light (MIL)
- Check-engine blink code
- —
- Applies to
- Generic OBD-II meaning. Not every code is used by this car.
- Description
- Transmission Range Sensor Circuit Malfunction (PRNDL input)
- Detection / symptoms
- 1.Check engine light on 2.The backup lights may fail to function 3.It may be necessary to move the gearshift lever up and down slightly for a better contact to allow the starter to actuate and start the engine 4.It may be impossible to actuate the starter 5.In some cases, the engine will only start in neutral 6.May start in any gear
- Possible causes
- 1.TRS is loose and mal-adjusted 2.Transmission range sensor is defective 3.Bad connector at the external TRS, either loose, corroded or bent pins 4.Shorted wiring harness on the external sensor as a result of rubbing on the transmission linkage 5.Blockage in the internal valve body TRS port or defective sensor 6.Diagnostic Steps & Possible Solutions 7.Replacement of an internal TRS requires using a Tech II for diagnosis, followed by draining the transmission and removing the pan. The sensor is…
- What to check
- 1.Read the code with a scanner that can read the gearbox computer 2.Check the gearbox fluid level and condition with the correct procedure 3.Check the connector and wiring at the gearbox 4.Have a gearbox specialist confirm before replacing parts
- Confidence
- medium (generic OBD-II definition, not checked against the factory manual for this car)
Generic OBD-II meaning (obd-codes.com), not checked against this car's factory manual. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights